It is designed to tackle ever-increasing numbers of lionfish, or pterois, which is native to the Indian and Pacific Oceans but has spread, perhaps as a result of being dumped by aquarium owners.
The fish reproduce extremely rapidly, spawning around 2 million eggs each year, and lack their own predators as a result of their venomous spines.
They are also indiscriminate predators, eating prey up to half the size of their own bodies. As a result the species is threatening fish stock, and damaging reefs.
The Guardian LF1 was created as an affordable and humane solution to the problem. It can dive down to the 400 feet needed to catch lionfish, and also hover around reefs to protect them.
Operated remotely, the robot – which costs less than $1,000 – is powered by eight thrusters and includes cameras and lights that let the user identify nearby lionfish. A pair of electrodes can then be used to apply a small electric current to the water near the fish to stun it.It's then suctioned into a container, which can hold up to ten lionfish before it needs to return to the surface."Lionfish are a formidable threat to the fisheries and reefs in Bermuda and throughout the western Atlantic," said Sylvan Richards, Minister of the Environment, Bermuda Government – which supported development of the robot. Working with RSE to innovate this unique solution allows us to extend our stewardship of Bermuda's biodiversity to areas we cannot easily each, and help other jurisdictions facing the same problem."
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